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Plasma structures and transport in the SOL of the T-10 tokamak

机译:T-10托卡马克的SOL中的血浆结构和运输

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摘要

Plasma regions (or structures) with high density are formed at or near the last closed flux surface (LCFS) in the T-10 tokamak. Plasma density inside the plasma structures is 1.5-2.5 times higher than the density of the background plasma. The structures move in radial direction and lead to an increase of the turbulent particle flux to the wall. The probability distribution function (PDF) of the turbulent particle flux is positively skewed in the scrape-off layer (SOL). The PDF is near Gaussian at the LCFS: the skewness is equal to zero, and the flatness is equal to 3. Negative particle flux bursts in this region correlate with lower-than-average density fluctuations, and are therefore interpreted as lower density plasma regions propagating towards the plasma core. (c) 2004 Elsevier B.V. All rights reserved.
机译:在T-10托卡马克中的最后一个封闭通量表面(LCFS)或附近形成高密度的等离子体区域(或结构)。等离子体结构内部的等离子体密度是背景等离子体密度的1.5-2.5倍。这些结构沿径向方向移动,并导致流向壁的湍流粒子通量增加。湍流粒子通量的概率分布函数(PDF)在刮除层(SOL)中正偏斜。 PDF在LCFS处接近高斯:偏度等于零,平坦度等于3。该区域中负的粒子通量爆发与低于平均水平的密度波动相关,因此被解释为较低密度的等离子体区域向等离子体核心传播。 (c)2004 Elsevier B.V.保留所有权利。

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